---
product_id: 227481677
title: "World Smart Tech Sound Action Tunnel Circle Battery Powered Train Set for Children Age 3 Years Up [Amazon Exclusive]"
brand: "brio"
price: "£74.00"
currency: GBP
in_stock: true
reviews_count: 8
category: "Brio"
url: https://www.desertcart.co.uk/products/227481677-world-smart-tech-sound-action-tunnel-circle-battery-powered-train
store_origin: GB
region: United Kingdom
---

# FSC-certified European beech wood Smart Tech Sound responsive engine 14-piece interactive set World Smart Tech Sound Action Tunnel Circle Battery Powered Train Set for Children Age 3 Years Up [Amazon Exclusive]

**Brand:** brio
**Price:** £74.00
**Availability:** ✅ In Stock

## Summary

> 🚂 Elevate playtime with smart sound and classic style—don’t let your little conductor miss out!

## Quick Answers

- **What is this?** World Smart Tech Sound Action Tunnel Circle Battery Powered Train Set for Children Age 3 Years Up [Amazon Exclusive] by brio
- **How much does it cost?** £74.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/227481677-world-smart-tech-sound-action-tunnel-circle-battery-powered-train)

## Best For

- brio enthusiasts

## Why This Product

- Trusted brio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ready Out-of-the-Box:** No assembly required—just insert batteries and watch the adventure begin immediately.
- • **Expandable Classic Design:** Compatible with all BRIO World wooden train tracks and accessories, letting you build your own unique railway empire.
- • **Immersive Smart Tech Sound:** Battery-powered engine reacts dynamically to tunnels and track accessories, creating an engaging sensory play experience.
- • **Premium Sustainable Materials:** Crafted from FSC-certified European beech wood and durable plastics for a timeless, eco-conscious playset.
- • **Perfect Gift for Early Learners:** Boosts spatial awareness and fine motor skills while delivering hours of imaginative fun for kids aged 3 and up.

## Overview

The BRIO World Smart Tech Sound Action Tunnel Circle Train Set is a 14-piece, battery-powered wooden railway designed for children aged 3 and above. Featuring interactive Smart Tech Sound technology, it responds to track accessories for an immersive play experience. Made from FSC-certified European beech wood and high-quality plastics, this set is compatible with the entire BRIO World system, requires no assembly, and promotes developmental skills like spatial awareness and fine motor coordination.

## Description

BRIO World Smart Tech Sound Action Tunnel Circle Battery Powered Train Set for Children Age 3 Years Up [desertcart Exclusive] : desertcart.co.uk: Toys & Games

Review: Great buy - Nothing and I am sure my nephew will love it.
Review: brio - Well made, strong toy with features that keep my grandson very interested, The sound and lights help with sensery learning - Excellent

## Features

- Warning:Only for domestic use
- Take control of the play with this 14-piece interactive toy train set - the Action Tunnel Circle Set. Added Smart Tech Sound technology allows the battery-powered Record & Play Engine to communicate with its surroundings, automatically responding to Smart Tech accessories.
- The track layout measures 46.4 x 46.4 x 9.8cm and includes 14 pieces: 1x Record & Play Engine, 1x Travel Wagon, 1x Sound Action Tunnel, 1x Change Direction Action Tunnel, 2x Red Tracks w/ Action Tunnel Slot, 6x Wooden Tracks, 1x Passenger, 1x Warning Sign.
- BRIO Trains, Engines, Wagons, Carriages, and Vehicles feature the classic BRIO magnetic couplingsfor easily hook up! All train sets, rails, accessories and destinations feature the classic wooden train track allowing for easy connection to each other and expand your own BRIO World.
- Crafted using FSC sourced European beech wood and high-quality plastics the BRIO World railway range is suitable for ages 3 Years and up and make ideal gifts for boys and great gifts for girls.
- We know that children sometimes play with toys in other ways than expected. That’s why we test our products thoroughly to our strict safety requirements which in many cases are tougher than the legal requirements. BRIO Railway Sets make a great birthday gift or smashing Christmas gift.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0861W61NV |
| Age Range Description | 3 Years |
| Age range (description) | 3 Years |
| Assembly Instructions Description | No assembly required |
| Base Material | Wood and plastic |
| Battery Description | Alkaline |
| Best Sellers Rank | 71,665 in Toys & Games ( See Top 100 in Toys & Games ) 116 in Kids' Trains & Railed Vehicle Playsets |
| Brand | BRIO |
| Brand Name | BRIO |
| CPSIA Cautionary Statement | No Warning Applicable |
| Collection Name | Toy Vehicles or Transportation Toys |
| Colour | Natural Wood |
| Compatibility Options | BRIO World toy train system |
| Control Method | Touch |
| Control Type | Manual/Hand |
| Controller Type | Touch Control |
| Country Of Origin | China |
| Customer Reviews | 4.4 out of 5 stars 177 Reviews |
| Educational Objective | Spatial Awareness, Fine Motor Skills |
| Fit Type | freestanding |
| Frame Material Type | wood |
| Global Trade Identification Number | 07312350339741 |
| Included Components | Includes 14 pieces: 1x Record & Play Engine, 1x Travel Wagon, 1x Sound Action Tunnel, 1x Change Direction Action Tunnel, 2x Red Tracks w/ Action Tunnel Slot, 6x Wooden Tracks, 1x Passenger, 1x Warning Sign. |
| Inner Material | Wood, Plastic |
| Is Assembly Required | No |
| Is Electric | Yes |
| Item Dimensions | 104.1 x 152.4 centimetres |
| Item Shape | irregular shape |
| Item Type Name | BRIO Bahn 33974 - Smart Tech Sound Starter Set |
| Item Weight | 796 Grams |
| Manufacturer | BRIO |
| Manufacturer Part Number | 33974 |
| Manufacturer Warranty Description | 2 Year Manufacturer Guarantee |
| Material | Wood Plastic |
| Material Type | Wood Plastic |
| Maximum Age Recommendation | 36 |
| Minimum Age Recomendation | 36 |
| Minimum Age Recommendation | 36.0 |
| Model Name | Action Tunnel Circle Set-33974 |
| Model Number | 33974 |
| Model Year | 2020 |
| Model name | Action Tunnel Circle Set-33974 |
| Not for Kids | No |
| Number of Batteries | 2 AAA batteries required. |
| Number of Pieces | 14 |
| Number of Players | 1+ |
| Occasion | Birthday, Christmas |
| Operation Mode | Automatic |
| Other Special Features of the Product | Portable |
| Outer Material | Wood, Plastic |
| Power Plug Type | No Plug |
| Power Source | Battery Powered |
| Product Style | Classic |
| Rail Guage | 1.42 mm (4 feet 8.5 inches) |
| Rechargeable Batteries Included? | No |
| Remote Included | No |
| Scale | HO scale |
| Set Name | Action Tunnel Circle Set |
| Size | Medium |
| Skill Level | Beginner |
| Subject Character | Brio Smart Tech |
| Theme | Action,Train |
| Unit Count | 1.0 count |

## Images

![World Smart Tech Sound Action Tunnel Circle Battery Powered Train Set for Children Age 3 Years Up [Amazon Exclusive] - Image 1](https://m.media-amazon.com/images/I/61JJI2+fY2L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great buy
*by M***H on 13 December 2024*

Nothing and I am sure my nephew will love it.

### ⭐⭐⭐⭐⭐ brio
*by S***E on 10 January 2022*

Well made, strong toy with features that keep my grandson very interested, The sound and lights help with sensery learning - Excellent

### ⭐⭐⭐⭐⭐ Train
*by P***Y on 15 November 2020*

Happy with it grandson will love it for xmas

## Frequently Bought Together

- Brio 33974 World-Smart Tech Sound-Action Tunnel Circle Set | Interactive Toy Train Set | Enhances Motor Skills | FSC Certified Wood | Compatible with All BRIO Tracks and Vehicles
- BRIO 33973 Smart Tech Sound Action Tunnel Station | Wooden Toy Train Set for Kids Age 3 and Up
- BRIO Smart Tech Sound Waterfall Tunnel - Interactive Train Set Accessory | Enhances Motor Skills | Child-Safe | FSC-Certified Wood Material

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.uk/products/227481677-world-smart-tech-sound-action-tunnel-circle-battery-powered-train](https://www.desertcart.co.uk/products/227481677-world-smart-tech-sound-action-tunnel-circle-battery-powered-train)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-24*